Butt Mustard
The greasy residue left in your underwear.
Butt Mustard
The tangy yellow spread secreted from the anus during copulation - often used as a spread on chicken sandwiches.
Man, gimme some more of that butt mustard yo, my sandwich is dry.
Butt Mustard
The pasty by product of a long days work, and a bad wipe job after a long night of drinking beer and eating too many hotdogs.
Hey, look at the back of your pants, looks like you have a bit of Butt Mustard there.
Butt Mustard
A fart that seeps out a little bit of liquid. Similar to a shart, but much less solid. Usually occurs after a heavy night of drinking.
When I farted, I thought it was okay, but then I felt the butt mustard squishing between my cheeks.
Butt Mustard
The mix off blood, cum and shit that is often created during anal sex. It's dirty brownish yellow color and thick, soupy consistency resembles Dijon mustard.
How am I ever going to get that Butt Mustard off of my sheets before my girlfriend gets home?!?!?!
Butt Mustard
Another way to describe the shit that comes out of a baby, it gets it's name from the color and consistency
You have to change little Johnny this time, I had to deal with his butt mustard last time!
Butt Mustard
The watery sound ketchup/mustard makes when squeezed from a bottle.
Wow, Mike, that really sounded like a fart. No, dude, it was butt mustard. I was putting ketchup on my burger.